Nut-lock.



W. B. woons.

NUT LOCK.

APPLICATION FILED JULY 5, 1911.-

1,028,806, Patented June 4, 1912.

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s'rns WILLIAM B. WOODS, OF BALTIMORE, MARYLAND.

NUT-LOCK.

Specification of Letters Patent.

Patented June 4, 1912.

Application filed July 5, 1911. Serial No. 636,876.

To all whom it may concern:

Be it known that I, WILLIAM B. Wooos, a citizen of the United States,residing at Baltimore, in the State of Maryland, have invented new anduseful Improvements in Nut-Locks, of which the following is aspecification.

This invention relates to nut locks and more particularly to that typewhich are adapted to be used in connection with rail joints or the like.

One of the principal objects of the invent-ion is the provision of adevice of this character which can be produced at a relatively low cost,so that the same can be adopted by the railroads without entailing greatexpense.

A further object of the-invention is the provision of a nut of theVerona type having means for preventing the nut from turning relativelyto the washer which is independent of the inherent resiliency of thewasher itself, the washer being of such size as to lie between the upperand lower flanges of the fish plate and engage the same, so as toprevent turning with relation to the bolt.

Further objects of the invention will appear as the following specificdescription is read in connection with the accompanying drawing, whichforms a part of this application, and in which Figure 1 is a sideelevation of a section of a rail. Fig. 2 is a section through the railsshowing the device in edge elevation. Figs. 3 and 4 are side elevationaland perspective views, respectively, of the nut lock removed-from thebolt. Fig. 5 is side elevation showing a modified form of nut lock.

Referring more particularly to the drawing, 1 represents an ordinaryrail and 2 the ordinary type of fish plate now used in connecting theends of the rails together. This fish plate is provided with a web 3, ahead 4 and a base flange 5. The head 4 extends upon opposite sides ofthe web and forms a shoulder 6, while the base flange 5 forms anothershoulder, which shoulders are adapted to be engaged by the sides of thenut lock, as will be hereinafter described.

The nut lock comprises an annular substantially flat member 7 which issplit, as shown at 8, and is provided with an annular raised boss 9. Thetwo terminal ends of the device are indicated at 10 and 11 and lie indifferent planes, shown in Figs. 3 and 4.

The end 11 is raised above the end 10, the inclination of the same beingstarted at a point indicated by X and continuing from a point marked Yon a gradual curve upward, as shown. This not only binds upon the nutfrom the point X to the end 11 but also produces an are from the point Yto the end 11 which must necessarily be flattened out when the nut isdriven home, thereby increasing the spring against the nut, the fiatmember 7 adding to the raised boss 9. The outlying flange beyond theboss is shown to have a tongue 12 bent up therefrom and extending on thearc of a circle from the general plane of the device to its terminal endwhich is raised approximately an eighth of an inch or more above the topof the boss 9. This tongue has sufiicient resiliency to be depressedeach time the corner of the polyhedral nut 13 passes over the same andto engage the sides thereof to prevent the same from turning relativelyto the nut lock. Opposite sides of the washer are flattened so as toengage the shoulder 6 or the base flange, or both of them, whereby thewasher is prevented from turning with relation to the bolt 14.

In the modification shown in Fig. 5, the lower terminal of the splitring has a depending projection 15,as shown. This type of washer is onlyused when the device is applied to bolts where the nut ordinarily restsupon wood. The construction is such that the depending projection willbe forced into the wood and being embedded therein will prevent the nutlock from turning.

Having thus described the invention, what I claim as new is 1. A nutlock comprising a split washer having one of its legs inclined andterminating above the other, said inclination being on a gradual curvefrom a point intermediate the length of the inclination.

2. A nut lock comprising a split washer having one of its legsterminating above the other and inclined upon a gradual curve from apoint intermediate the length of the leg, and a spring tongue struck upfrom the washer opposite the terminal end of the inclined leg and havingits terminal end lying above the normal plane of the washer andsubstantially in a plane with the terminal end of the inclined leg.

3. A not lock comprising a split washer having one leg inclined on acurve, a base pressure flange, and a locking tongue struck up from theflange and having its terminal end projecting above the Washer.

4. A nut lock comprising a split Washer having a portion thereofinclined from the normal horizontal plane on the arc of a circle Whoseaxis is horizontal, a base flange, and a locking tongue struck up fromthe flange and having its terminal end projecting above the Washer.

5. A nut lock comprising a split Washer having one of its legscircumferentially curved, a base flange, and a locking tongue struck upfrom the flange and having its terminal end projecting above thevvasher.

6. A nut lock comprising a split Washer having a bolt opening, saidWasher increasing in thickness toward said bolt opening, a lockingtongue struck up from the Washer and arranged concentric With the boltopening, said tongue having its terminal end lying substantially in aplane with one of the ends of said split Washer and out of the normalplane of the device.

In testimony whereof I afliX my signature in presence of two Witnesses.

WILLIAM B. WVOODS. Witnesses:

E. EDMoNsroN, Jr., E. HENEN TALBERT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

